Thu, 27 Dec 2018 11:43:33 +0800
Merge
1 #
2 # Copyright (c) 2004, 2015, Oracle and/or its affiliates. All rights reserved.
3 # Copyright 2012, 2015 SAP AG. All rights reserved.
4 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 #
6 # This code is free software; you can redistribute it and/or modify it
7 # under the terms of the GNU General Public License version 2 only, as
8 # published by the Free Software Foundation.
9 #
10 # This code is distributed in the hope that it will be useful, but WITHOUT
11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 # version 2 for more details (a copy is included in the LICENSE file that
14 # accompanied this code).
15 #
16 # You should have received a copy of the GNU General Public License version
17 # 2 along with this work; if not, write to the Free Software Foundation,
18 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 #
20 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 # or visit www.oracle.com if you need additional information or have any
22 # questions.
23 #
24 #
26 # Produce 64 bits object files.
27 CFLAGS += -q64
29 # Balanced tuning for recent versions of the POWER architecture (if supported by xlc).
30 QTUNE=$(if $(CXX_SUPPORTS_BALANCED_TUNING),balanced,pwr5)
32 # Try to speed up the interpreter: use ppc64 instructions and inline
33 # glue code for external functions.
34 OPT_CFLAGS += -qarch=ppc64 -qtune=$(QTUNE) -qinlglue
36 # We need variable length arrays
37 CFLAGS += -qlanglvl=c99vla
38 # Just to check for unwanted macro redefinitions
39 CFLAGS += -qlanglvl=noredefmac
41 # Suppress those "implicit private" warnings xlc gives.
42 # - The omitted keyword "private" is assumed for base class "...".
43 CFLAGS += -qsuppress=1540-0198
45 # Suppress the following numerous warning:
46 # - 1540-1090 (I) The destructor of "..." might not be called.
47 # - 1500-010: (W) WARNING in ...: Infinite loop. Program may not stop.
48 # There are several infinite loops in the vm, suppress.
49 # - 1540-1639 (I) The behavior of long type bit fields has changed ...
50 # ... long type bit fields now default to long, not int.
51 CFLAGS += -qsuppress=1540-1090 -qsuppress=1500-010 -qsuppress=1540-1639
53 # Suppress
54 # - 540-1088 (W) The exception specification is being ignored.
55 # caused by throw() in declaration of new() in nmethod.hpp.
56 CFLAGS += -qsuppress=1540-1088
58 # Turn off floating-point optimizations that may alter program semantics
59 OPT_CFLAGS += -qstrict
61 # Disable aggressive optimizations for functions in sharedRuntimeTrig.cpp
62 # and sharedRuntimeTrans.cpp on ppc64.
63 # -qstrict turns off the following optimizations:
64 # * Performing code motion and scheduling on computations such as loads
65 # and floating-point computations that may trigger an exception.
66 # * Relaxing conformance to IEEE rules.
67 # * Reassociating floating-point expressions.
68 # When using '-qstrict' there still remains one problem
69 # in javasoft.sqe.tests.api.java.lang.Math.sin5Tests when run in compile-all
70 # mode, so don't optimize sharedRuntimeTrig.cpp at all.
71 OPT_CFLAGS/sharedRuntimeTrig.o = $(OPT_CFLAGS/NOOPT)
72 OPT_CFLAGS/sharedRuntimeTrans.o = $(OPT_CFLAGS/NOOPT)
74 # Xlc 10.1 parameters for aggressive optimization:
75 # - qhot=level=1: Most aggressive loop optimizations.
76 # - qignerrno: Assume errno is not modified by system calls.
77 # - qinline: Inline method calls. No suboptions for c++ compiles.
78 # - qxflag=ASMMIDCOALFIX: Activate fix for -O3 problem in interpreter loop.
79 # - qxflag=asmfastsync: Activate fix for performance problem with inline assembler with memory clobber.
80 QV10_OPT=$(if $(CXX_IS_V10),-qxflag=ASMMIDCOALFIX -qxflag=asmfastsync)
81 QV10_OPT_AGGRESSIVE=$(if $(CXX_IS_V10),-qhot=level=1 -qignerrno -qinline)
82 QV10_OPT_CONSERVATIVE=$(if $(CXX_IS_V10),-qhot=level=1 -qignerrno -qinline)
84 # Disallow inlining for synchronizer.cpp, but perform O3 optimizations.
85 OPT_CFLAGS/synchronizer.o = $(OPT_CFLAGS) -qnoinline
87 # Set all the xlC V10.1 options here.
88 OPT_CFLAGS += $(QV10_OPT) $(QV10_OPT_AGGRESSIVE)
90 export OBJECT_MODE=64
92 # Also build launcher as 64 bit executable.
93 LAUNCHERFLAGS += -q64